[token-cli] Add support for transfer-hook account resolution for tran…

…sfers with the transfer-fee extension. (#7171)

* Added transfer_fee extension

* added create_transfer_checked_with_fee_instruction_with_extra_metas

* add support for transfer-hook account resolution in transfer_with_fee

* add offchain helper `invoke_transfer_checked_with_fee`

* Nit: Added better description to function

* add test for offchain helper `create_transfer_checked_with_fee_instruction_with_extra_metas`

* add `success_transfer_with_fee` test

* add test `success_transfers_with_fee_using_onchain_helper`

* Add cli test `transfer_hook_with_transfer_fee`

* fix: correctly use the new onchain helper in test

* Remove unneeded helpers

token/cli/tests/command.rs

@@ -139,6 +139,7 @@ async fn main() {
         async_trial!(group_pointer, test_validator, payer),
         async_trial!(group_member_pointer, test_validator, payer),
         async_trial!(transfer_hook, test_validator, payer),
+        async_trial!(transfer_hook_with_transfer_fee, test_validator, payer),
         async_trial!(metadata, test_validator, payer),
         async_trial!(group, test_validator, payer),
         async_trial!(confidential_transfer_with_fee, test_validator, payer),
@@ -3872,6 +3873,107 @@ async fn transfer_hook(test_validator: &TestValidator, payer: &Keypair) {
     assert_eq!(extension.program_id, None.try_into().unwrap());
 }
 
+async fn transfer_hook_with_transfer_fee(test_validator: &TestValidator, payer: &Keypair) {
+    let program_id = spl_token_2022::id();
+    let mut config = test_config_with_default_signer(test_validator, payer, &program_id);
+    let transfer_hook_program_id = Pubkey::new_unique();
+
+    let transfer_fee_basis_points = 100;
+    let maximum_fee: u64 = 10_000_000_000;
+
+    let result = process_test_command(
+        &config,
+        payer,
+        &[
+            "spl-token",
+            CommandName::CreateToken.into(),
+            "--program-id",
+            &program_id.to_string(),
+            "--transfer-hook",
+            &transfer_hook_program_id.to_string(),
+            "--transfer-fee",
+            &transfer_fee_basis_points.to_string(),
+            &maximum_fee.to_string(),
+        ],
+    )
+    .await;
+
+    // Check that the transfer-hook extension is correctly configured
+    let value: serde_json::Value = serde_json::from_str(&result.unwrap()).unwrap();
+    let mint = Pubkey::from_str(value["commandOutput"]["address"].as_str().unwrap()).unwrap();
+    let account = config.rpc_client.get_account(&mint).await.unwrap();
+    let mint_state = StateWithExtensionsOwned::<Mint>::unpack(account.data).unwrap();
+    let extension = mint_state.get_extension::<TransferHook>().unwrap();
+    assert_eq!(
+        extension.program_id,
+        Some(transfer_hook_program_id).try_into().unwrap()
+    );
+
+    // Check that the transfer-fee extension is correctly configured
+    let extension = mint_state.get_extension::<TransferFeeConfig>().unwrap();
+    assert_eq!(
+        u16::from(extension.older_transfer_fee.transfer_fee_basis_points),
+        transfer_fee_basis_points
+    );
+    assert_eq!(
+        u64::from(extension.older_transfer_fee.maximum_fee),
+        maximum_fee
+    );
+    assert_eq!(
+        u16::from(extension.newer_transfer_fee.transfer_fee_basis_points),
+        transfer_fee_basis_points
+    );
+    assert_eq!(
+        u64::from(extension.newer_transfer_fee.maximum_fee),
+        maximum_fee
+    );
+
+    // Make sure that parsing transfer hook accounts and expected-fee works
+    let blockhash = Hash::default();
+    let program_client: Arc<dyn ProgramClient<ProgramRpcClientSendTransaction>> = Arc::new(
+        ProgramOfflineClient::new(blockhash, ProgramRpcClientSendTransaction),
+    );
+    config.program_client = program_client;
+
+    let _result = exec_test_cmd(
+        &config,
+        &[
+            "spl-token",
+            CommandName::Transfer.into(),
+            &mint.to_string(),
+            "100",
+            &Pubkey::new_unique().to_string(),
+            "--blockhash",
+            &blockhash.to_string(),
+            "--nonce",
+            &Pubkey::new_unique().to_string(),
+            "--nonce-authority",
+            &Pubkey::new_unique().to_string(),
+            "--sign-only",
+            "--mint-decimals",
+            &format!("{}", TEST_DECIMALS),
+            "--from",
+            &Pubkey::new_unique().to_string(),
+            "--owner",
+            &Pubkey::new_unique().to_string(),
+            "--transfer-hook-account",
+            &format!("{}:readonly", Pubkey::new_unique()),
+            "--transfer-hook-account",
+            &format!("{}:writable", Pubkey::new_unique()),
+            "--transfer-hook-account",
+            &format!("{}:readonly-signer", Pubkey::new_unique()),
+            "--transfer-hook-account",
+            &format!("{}:writable-signer", Pubkey::new_unique()),
+            "--expected-fee",
+            "1",
+            "--program-id",
+            &program_id.to_string(),
+        ],
+    )
+    .await
+    .unwrap();
+}
+
 async fn metadata(test_validator: &TestValidator, payer: &Keypair) {
     let program_id = spl_token_2022::id();
     let config = test_config_with_default_signer(test_validator, payer, &program_id);

token/client/src/token.rs

@@ -1166,21 +1166,44 @@ where
         let multisig_signers = self.get_multisig_signers(authority, &signing_pubkeys);
         let decimals = self.decimals.ok_or(TokenError::MissingDecimals)?;
 
-        self.process_ixs(
-            &[transfer_fee::instruction::transfer_checked_with_fee(
+        let fetch_account_data_fn = |address| {
+            self.client
+                .get_account(address)
+                .map_ok(|opt| opt.map(|acc| acc.data))
+        };
+
+        let instruction = if let Some(transfer_hook_accounts) = &self.transfer_hook_accounts {
+            let mut instruction = transfer_fee::instruction::transfer_checked_with_fee(
                 &self.program_id,
                 source,
-                &self.pubkey,
+                self.get_address(),
                 destination,
                 authority,
                 &multisig_signers,
                 amount,
                 decimals,
                 fee,
-            )?],
-            signing_keypairs,
-        )
-        .await
+            )?;
+            instruction.accounts.extend(transfer_hook_accounts.clone());
+            instruction
+        } else {
+            offchain::create_transfer_checked_with_fee_instruction_with_extra_metas(
+                &self.program_id,
+                source,
+                self.get_address(),
+                destination,
+                authority,
+                &multisig_signers,
+                amount,
+                decimals,
+                fee,
+                fetch_account_data_fn,
+            )
+            .await
+            .map_err(|_| TokenError::AccountNotFound)?
+        };
+
+        self.process_ixs(&[instruction], signing_keypairs).await
     }
 
     /// Burn tokens from account